chemÂ·oÂ·lithÂ·oÂ·auÂ·toÂ·troph. noun. A chemosynthetic organism that obtains energy from the oxidation of inorganic compounds and uses carbon dioxide as its sole source of carbon for growth. Also called chemoautotroph, chemolithotroph.
A soft one based only on phosphoric acid - KWIKSHOT & DEFIANCE. A medium one which is strong but do not give out fumes and suitable for both ferrous and on ferrous metals - HOTPURSUIT ; and. A strong one based on mixture of acids for removal of all kind of scales and rust - PEDIGREE.
Undiluted vinegar can be used to remove rust from metal surfaces. It reacts with the rust and helps dissolve it off from the metal. Soak the rusty metal objects in vinegar for about 24 hours, and then simply wipe away the surface rust using a rag. This method is very useful for removing rust from nails, nuts and bolts. If the object is too large, simply pour some vinegar on the rusted surface, and wipe with a rag after a few hours.